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F. H. PAGE.

umou ron ATTACHMENT OF STRUTS on FRAMES m AIRCRAFT. APPLICATION FILED MAY 26. I9I9.

1 ,31 1,706. Patentd July 29, 19 1 9.

FREDERICK HANDLEY PAGE, OF LONDON, ENGLAND.

UNION FOR ATTACHMENT OF STRUTS 0R FRAMES IN AIRCRAFT.

Specification of Letters Patent.

Patented July 29, 1919.

Application filed May 26, 1919. Serial No. 300,014.

To all whom it may concern: I

Be it known that I, FREDERICK HANoLny PAen, a subject of the King of Great Britain, residing at London, England, have invented certain new and useful Improvements in Unions for Attachment of Struts or Frames in Aircraft, of which the following is a specification.

This invention relates to improvements in aircraft and more particularly to an improved construction of union for the attachment of struts to aircraft.

According to the present invention a union or joint,hereinafter termed union, for struts arranged in V form is constructed from a sheet-metal blank, bent into approximately conical box-like form having its edges secured by welding, riveting, or the like, and carrying upon two adjacent faces tubular sockets to receive the struts. The tubular sockets are provided with depending tongues securely attached to the faces of the box. The box is also provided at its apex with a bearing-member for a joint-pin or other means for attaching the union to the aircraft.

A form of construction of such union will now be described with reference to the accompanying drawing, in which Figure 1 is a View of a metal blank suitably shaped to form an approximately conical box-like structure, Fig. 2 is a perspective view of the blank bent or stamped to form the box, Fig. 3 is a front elevation, Fig. 4 a side elevation, showing the union complete, and Fig. 5 is a front elevation showing a slight modification in the construction.

A suitably shaped metal blank 1 is stamped or bent at the parts indicated by dotted lines 2 to form an approximately conical box-like structure, triangular in front elevation (see Fig. 2), having its edges 3 welded or otherwise secured. The upper faces 4, 5 of the box are arranged to form surfaces inclined with respect to each other, so as to form faces at right angles to the struts to be received and provide bases for tubular sockets 6. These tubular sockets 6 are placed in position on the faces 4, 5 of the box and have depending tongues 7, which are secured to the walls of the box by welding or other suitable means.

At the lower part of this box structure a bearing for the joint-pin is provided as indicated at Figs. 3 and 4 by inserting bearing pieces 8 within the box and riveting them to the walls thereof, the tongue-like ends :9 of the blank being bent around the bearlng-pieces and secured thereto, or, a single bearing-piece may be inserted within the box as shown at Fig. 5 and these bearing-pieces may be so placed as to receive a joint-pin at right angles to the plane containing the struts as in Figs. 3 and 4 or in a plane parallel therewith as in Fig. 5.

The bearing-pieces 8 with their extensions are shaped to distribute the strain over a large surface of the blank, being shown in the drawing to be taper and having the socket-hole below the center of the boss of the bearing-piece. Suitable holes may be punched in the blank for lightness or for the reception of other attachments.

What I claim as myinvention and desire to secure by Letters Patent is 1. A union for receiving struts in V form, comprising a sheet-metal blank bent into an approximately conical box-form joined together at the edges and having faces at right angles to said struts and sockets on such faces for receiving said struts, the apex of the box being adapted to receive a joint-pin for attachment to the aircraft.

2. A union for receiving struts in V form, comprising a sheet-metal blank bent into approximately conical box-form joined together at the edges and having faces at right angles to said struts and tubular sockets slotted to leave arms for embracing the sides of the box-shaped part and attached thereto, the apex of the box being formed to receive a joint-pin for attachment to the aircraft.

3. A union for receiving struts in V form, comprising a sheet-metal blank bent into approximately conical box-form joined together at the edges and having faces at right angles to said struts and sockets on such faces for receiving said struts, the apex of the box being adapted to receive a bearingmember having taper extensions by which it is attached to the box.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

FREDERICK HANDLEY PAGE.

Witnesses:

GRIFFITH BREWER, CYRIL Grimm Bnnwnn.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Iatents,

Wanhington, I). 0. 

